namespace CSharp_1209
{
    namespace Library
    {
        public class Book
        {
            private string _isbnNumber;
            private string _bookTitle;
            private int _bookID;

            public Book(string number, string title, int id)
            {
                _isbnNumber = number;
                _bookTitle = title;
                _bookID = id;
            }

            public string IsbnNumber
            {
                get { return _isbnNumber; }
            }

            public string BookTitle
            {
                get { return _bookTitle; }
            }

            public int BookID
            {
                get { return _bookID; }
            }
        }
    }
}